Most "premium" vehicles use this engine orientation, both front and rear wheel driven, because powerful engines such as the Inline-6 and 90° big-bore V8 are usually too long to fit in a FF transverse engine while most mainstream modern vehicles use front wheel drive along with transverse engine arrangement
Position placement of longitudinal engines
Engines may be placed in three main positions within the motor car:
front engine - where the engine is mounted under the bonnet/hood, over the front axle (sometimes ahead of the front axle, sometimes behind it: "mid-front" engine),
rear engine - where the engine is mounted where the boot/trunk would normally be, either over, or to the rear of the rear axle,
mid engine - where the engine is mounted between the front and rear axles, usually where the rear seats would be sited.
Common types of longitudinally placed engines
This is a list of typical examples of types of engines which can be placed in motor vehicles: